Intel Xeon E3 1280 vs Intel Xeon X5660

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Intel Xeon E3-1280

Intel Xeon X5660

We compared two server CPUs: Intel Xeon E3 1280 with 4 cores 3.5GHz and Intel Xeon X5660 with 6 cores 2.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E3 1280 's Advantages

Released 1 years and 1 months late

Newer PCIe version (3 vs 2)

Higher base frequency (3.5GHz vs 2.8GHz)

Intel Xeon X5660 's Advantages

Larger L3 cache size (12MB vs 8MB)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E3 1280 +186%

1348

Intel Xeon X5660

471

Geekbench 6 Multi Core

Intel Xeon E3 1280 +118%

4533

Intel Xeon X5660

2075

Intel Xeon E3 1280

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Intel Xeon X5660

General Parameters

Apr 2011

Release Date

Mar 2010

Intel

Manufacturer

Intel

Server

Type

Server

Sandy Bridge

Core Architecture

Westmere-EP

Intel Socket 1155

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

Xeon E3 (Sandy Bridge)

Generation

Xeon (Westmere-EP)

Package

1.16 billions

Transistor Count

1.17 billions

32 nm

Manufacturing Process

32 nm

95 W

Power Consumption

95 W

Intel

Foundry

Intel

216 mm²

Die Size

239 mm²

CPU Performance

3.5 GHz

Performance Core Base Frequency

2.8 GHz

3.9 GHz

Performance Core Turbo Frequency

3.2 GHz

4

Total Core Count

6

8

Total Thread Count

12

100 MHz

Bus Frequency

133 MHz

35.0

Multiplier

21.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

8 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

1

SMP

2

Memory Parameters

DDR3

Memory Types

DDR3

2

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

2

16

PCIe Lanes

-

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